Hose reel



Oct. 28, 1952 A. J. GR NBERG HOSE REEL 4 sheets-skeet 1 Filed Oct. 27,1945 1 INVENTOR. ALBERT J. GRANBERG ATTORNEYS Oct. 28, 1952 A. a.- mm ,7

nose REEL Filed Oct. 27, 1945 sheets-shat 2 Fig-i I mvsmoa ALBERT J.GRANBERG Oct. 28, 1952 A. J. GRANBERG HOSE REEL 4 Sheets-Sheet 3 Filed001;. 27, 1945 HOSE REEL 4 Sheets-Sheet 4 Filed 001;. 27, 1945 lllll 113 INVENTCR. ALBERT J. GRANBERG ATTORNEYS Patented Get. 28 1952UWIVUNITED' STATES PATENT "OFF E HOSE REEL Albert J. Granberg, Oakland,Calif., assignor of 7.99 per cent to Chesley M. Walter, 4.42 per centeach to Albert S. Kozman and Jacob E. Peregrine, 2.2 1'p'er cent each toHarvey May and Leslie E.-Alley, 1.10 per cent to James E. Smith, and22.13 per cent to Robert W. Lindsay Original application February 12',1945, Serial No. 577,567. Divided and this application October 27, 1945,Serial No. 624,961 j g My invention relates to a system for thedistribution of liquid through a hose, and more particularly to a hosereel component of such system. I I f This application is a division ofmy application for Retr actible Hose Reel System, Ser. No. 577,567,filed February 12, 1945. I Among the objects of my invention are: n 1.To provide a novel and improved hose reel; 2. To provide a novel andimproved power retractible hose reel;

3. To provide a novel and improved hose reel adapted tow ork freely evenwhen exposedto twisting stresses. r

Additional objects of my invention will be brought out inthe followingdescription .of a preferred embodiment of the same,'taken in-con-'junction with the accompanying drawings whereproved hose reel embodiedas a component in the system of Figure'l;

Figure 5 is a view in section, taken in the plane- 55 of Figure 4;

Figure 6 is a view partly in section of a bypass control valve utilizedinthe system of Fig.1.

As previously indicated, the invention has been illustrated as part of asystem designed for 'use on a tank truck, and will be describedas such,although its field of application is not limited to this specific use.

Referring to the drawings, a gasoline distributing pump 1, preferably ofthe type dis-,

closedand claimed in my Patent No. 2,360,805 of October 28, 1941, ismaintained in continuous drive connection from the truck engine (not.

shown) through a drive shaft 3 which is coupled to the pump shaft 5through a universal coupling 1. This pump has its inlet or suction endconnected to the tank (not shown) through arr inlet pipe 9, and pumpsthe liquid through a discharge hose or pipe I0, which includes an airseparator H and meter 13, to a, discharge hose l5 carried on a suitablehose reel l1.

1 Claim. (01. 299 78 The air separator and meter; could be similar tothat described and claimed in Patent No. 2,272,170 of February 10, 1942,in which I am a joint inventor. This device and the hose reel arepreferably installed in a'conveniently accessible compartment "I 9carried by the truck-.- I

-T he hose reel l1 comprises a pair of end sup-- ports 21' andinterconnected by a hollow tubular shaft 25 fixed therein againstrotation. On this hollow 'tubesha-ft there is rotatably mounted,'as bymeans of spaced bearings 21 and 29, a

drum 3| includinga pair of end spiders 33 and 35 supporting a drumcylinder 31, at each end of which as afllxed a hose confiningrim orbarrier 39-and 4|, respectively. I

Extending within the drum and formed integrally with one of the endspiders 33, is a housing- 43 surrounding'the fixed shaft 25 and sealedthereto at eachend by means of rotaryseals 45' and 41, respectively. Thedetails of the rotary seal are incidental to the invention, but broadlycomprise an assembly of sealing washers of different materials such asrubber, carbon and bronze, within the housing at each end thereof andmaintained under continual compression against the ends of the housing43, bya strong intermediate spring 49 of the'compression'type,surrounding theshaft 25 and exerting a'strong outwardpressure' againsteach washer assembly- End play or endwise movement. of the reel' drum 3|is avoided by abutting the housing 43. with a thrust-collar 5| whichsurroundsthe shaft 25 and is affixed thereto by means of a, plurality ofradially disposed setscrews' 53. This thrust collar is enclosed by anend 'cap aflixed to the I end of the housing 43 and formed. for theinclusion ofadustseal 51.

At a location'in the tubular shaft 25 within that portion which isencircled by the housing 43, the shaft is formed with one or moreopenings -59 to provide communication between the tubular shaft and theinterior of the housing.

to provide Adjacent that end of; the housing 43 adjacent the spider 33,the housing is formed with a flangedopening 6| forflattachment theretoof a lead ofi hose connection 63 extending substantially radiallythrough the drum and terminating.

in a bend 65 at the surface of thedrum- The hose l5 to be carried on thereel, has one end connected tothis lead-01f connection. The leadoflconnection may-bedirected in either direction circumferentially of thedrum, depending hose is 't'o be upon the direction in which the wound onthe reel.

A reel constructed as described, is adapted to receive fluid by way ofthe hollow shaft 25, from which it will flow into the housin 43, andfrom there will be directed through the lead-off hose connection 63 tothe hose itself.

In adapting the reel for the introduction of fluid into the tubularshaft, the shaft is preferably provided with a screw-threaded flange 61at each end, and is closed off at one end by a flange plate 69 bolted tothe flange with the customary leak-proof gasket H between the two. Thatend of the shaft into which the liquid is to be pumped, is coupled tothe hose or pipe l coming from the pump I.

In a reel of the type described, the. drum 3| is always freely rotatableon the fixed shaft 25 and, therefore, will not bind on the shaft whenthe end supports are subject to twisting as is apt to occur in a truckinstallation due to weaving or road conditions. Similarly, theconstruction illustrated avoids the use of swivel connections, andparticularly is this of importance where such connections areincorporated in a mobile installation as in a tank truck.

In preparing for the dispensing of gasoline from the truck tank, theoperatorunwinds sufficient of the hose from the reel to reach thecustomers storage tank. Following the discharge of the proper amount ofgasoline into the customers storage tank, the hose must of ne ces sitybe rewound on the reel. A feature of the present invention resides in anhydraulic system whereby this may be readily accomplished by theoperator.

Toward this end, I affix a ring gear 13 to one of the end spiders 33 ofthe reel. On the adjacent end support 2! for the reel, I mount anhydraulic motor 15 in drive connection with the ring gear 13 as by apinion 14 meshing with gear 13. A chain drive could be substituted ifdesired. The hydraulic motor 75 is operated from.

an hydraulic generator 11 to which it is connected by a pipe system19including a pipe connection 8| between the outlet of said generatorand'the inlet of said motor, and a pipe connection between the outlet ofsaid motor and the inlet of said generator.

A small reservoir 85 connected in the latter pipe connection 83 whichconstitutes the return line of the pipe system, serves to maintain afull supply of fluid in the hydraulic system, and at the same timefunctions to accommodate changes in the capacity of the system due toexpansion or contraction thereof.

The hydraulic generator 11 is bolted to and supported by a gland 81associated with the main pump l, and is driven from the main pump shaftby a gear train 89 including a pinion 9i keyed to the main pump shaftand meshing with a gear 93 keyed to the shaft 94 of the hydraulicgenerator 11. The gear train 89 is enclosed in a casing involving aplate 95 affixed to the pump gland 81 and hydraulic generator casing asby machine screws, and an enclosing cover 91.

The packing gland 81, it is noted, is bolted to the main pump l with itsaxis coinciding with the pump shaft axis, and consequently the gland maybe rotatably adjusted to as many positions as there are bolts holdingthe gland to the pump.

. The significance of this lies in the factthat the hydraulic generator11 being supported by the gland, is therefore likewise capable of beingshifted to any one of a number of positions about the pump shaft 5 as anaxis, and such poby the gear train 89.

4 sitional adjustment will likewise be permitted The ability to so shiftthe position of the hydraulic generator is of importance in a truck orany other type of installation where space is a material factor to beconsidered.

Inasmuch as the hydraulic generator is di rectly connected to the shaftof the main pump it will be in continuous operation so long as the truckengine is running, and it is necessary that the engine run so long as itis necessary to operate the truck or to pump gasoline from the trucktank. On the other hand, it is only infrequently that one finds itnecessary to rewind the hose on the reel.

Consequently, to permit idling of the reel during such long interveningperiods when rewinding is not necessary, I provide a normally shortcircuiting valve 99 (Fig. 1) between the two pipe connections 8| and 83of the hydraulic system, and preferably locate such valve adjacent thehydraulic motor 15 where it will be within convenient reach and controlof an operator, as he guides the hose onto the reel during rewinding.Such short circuiting valve may be of the type illustrated in Fig. 6which has a passage I00 therethrough capable of being closed in varyingdegrees by a gate I01 which is biased to an open position by a biasingspring l03,'be'aring against a handle I05 which is capable of beingmanually operated to adjust the valve opening from its fully openposition to any degree of closing. In its normal fully open position,the valve serves to by-pass around the hydraulic motor 15, the operatingfluid in the hydraulic system, and thus the operating fluid has no.operatingeffect on the hydraulic motor, and the hose reel ll willaccordingly idle.

However, as the valve gate is urged toward. it I closin position, moreand more of the operating fluid will be diverted to the hydraulic motor15 and cause the same to, respond at various speeds, depending on thedegree of closing of the valve.

Thus the operator has positive control. and can govern the speed ofrewind to suit his desires.

Not. infrequently, however, due to carelessness of the operator, or inspite of care exercised by. him, the hose may tangle or a kink maydevelop therein, and the resulting increase inl'oad'placed upon thehydraulic motor, could create pressure inthe system sufficient to damagethe reel 'or purpose, in mind, I have developed a pump ca-- pable of useeither as the hydraulic generator'or as the hydraulic motor of thesystem.

Such pump comprises a casing l09'havingan internal cylindrical chamber lI l-defined bya p'a'ir of spaced side walls 3- and H5 and a connect- Oneof the side walls I I5; is'formed' internally with a blade guide trackabout the axis n lwal ofsaid chamber in the, form of a circular chanaxisofthe chamber. This channel is adapted to slidablyreceive a plurality-ofarcuate segments The sideI I3 is formed witha'n's'a' "ial end pocket I2'I- to receive a rotaryseal I29 and a shaftbearing I3 I of the ballbearing typen 'lhe umeshan 94 passes through this rotary-seal andbearing, and terminates in a bearing I33 in the opposite side wall H5,the bearings being in alignment on an axis parallel to the axis of thechamber I I I but eccentrically disposed with respect thereto.

The shaft 94 carries a rotor I35 within the chamber, such rotorincluding a peripheral rim I31 on a plurality of spokes I39 equal innumber to the number of blades I25 to be employed in the pump or thenumber of segments I23 for anchoring the blades. The peripheral rim I3'Iof the rotor extends the axial length of the chamber, and is of adiameter to tangentially approach the cylindrical surface of the chamberat its nearest point.

Each of the rotor spokes I39 is provided with a deep radial slot I4Iextending through the rim of the rotor, to slidably receive one of theblades I25 of the pump, such blade being pivotally anchored to one ofthe slidable segments I23 as by a pivot I43 affixed to an edge of theblade and inserted into a pivot hole formed in the segment.

As can be seen from Figure 2, the rotor spokes are of reduced thickness,thereby permitting liquid flow from one portion of the circular channelH9 to another. The significance of this lies in the fact that thesegments I23 in their cyclic movement around the pump shaft alternatelyapproach and recede from each other, thus alternately expelling anddrawing in liquid into the channel. In as much as reverse conditionsexist at diametrically opposite points of the channel, an interchange ofliquid is always demanded during operation of the pump. As indicated,the

rotor spokes permit of such interchange.

Each blade is of a length to approach the cylin-. drical surface of thechamber with a minimum of clearance with respect thereto. Inasmuch asthe circular channel is concentric with the chamber, all blades will beof the same length.

A passage to the pump chamber is provided to one side. of the tangentialcontact of the rotor in the form of a channel I formed in the connectingwall I II and having communication with the exterior of the pump througha threaded opening I41. A similar passage I49 having outsidecommunication through a corresponding threaded opening I5I, is providedto the other side of such tangential contact. Either passage may serveas the inlet or discharge passage of the pump, depending upon thedirection of rotation of the rotor desired. For convenienceofdisclosure, the passage I45 will be considered the inlet passage. Eachblade in turning, effects a cut-off at the end I53 of the inlet passageI45 and permits of initial discharge from a pocket when such bladereaches the corresponding point I55 of the discharge passage.

It is important that the maximum spread or developed angle betweenblades should substantially span the arc between the end of the inletpassage and the beginning of the discharge passage as shown in thedrawings. The importance of this can best be seen if unfavorableconditions are assumed; Thus, should maximum spread be reached at anangle which does not span the arc in question, the subsequent reductionin the spread angle, which operation of the pump would call for,couldmot .be efiectedagainst the incom pressible liquid between thebladesca'n'dsomething must "give way. This. means bursting of the pump.I

Were the angle of spreadgreaterthan the arc in'question, a vacuum willdevelopbetween ,the

blades and cause considerable noise-comparable to water hammerin steampipes...

'- The aforementioned 'relation'hipcan best be obtained "by properdetermination of the 'resp'ec nve iengms of the inlet passage anddischarge passage.

In conventional pumpsoperating on this general principle, thecylindrical wall of the chamber is employed as a guide for the bladesand consequently each blade must be in constant frictional engagementwith the surface of the chamber, resulting in wear of the blades andoftentimes in the blades binding and causing damage to the pump. Byanchoring the blades in arcuate segments as described, a minimumclearance may be maintained between the blades and the cylindrical wallof the chamber whereby the blades are not exposed towear and under noconditions could they possibly bind.

In view of the eccentric disposal of the rotor, the blades do notmaintain radial positions in the pump chamber as they are moved aroundby the rotor, but are forced to swing slightly to either side of suchradial positions. Under the circumstances, and to assure maintenance ofminimum clearance between the blades and the cylindrical surface ofthepump chamber, the blades are of a thickness such that in positions ofmaximum swing, an extreme edge of the blade trated in Figure 3, the pumpwill retain prime ragardless of the directional rotation thereof.

From the above description of a preferred embodiment of my system andcomponents thereof as adapted for installation on a tank truck, it willbe apparent that the same fulfills all the objects of my inventionaspreviously set forth, and while I have described one embodiment of myinvention in considerable detail, the same is subject to alteration andmodification, without departing from the fundamental concepts thereof.

I accordingly do not desire to be limited in my protection to thespecific details illustrated and described, except as may benecessitated by the appended claim.

I claim:

A hose reel for mounting on a truck, comprising a pair of parallelspaced end supports, a hollow shaft fixedly supported on said endsupports and having one end closed; a reel drum rotatably mounted onsaid shaft, said reel drum including a pair of end spiders, a drumcylinder carried by said spiders and surrounding said shaft, and a hoseconfining rim affixed to each of said spiders adjacent the ends of saiddrum cylinder; a housing extending inwardly to an intermediate pointwithin said drum cylinder from one of said spiders and havingcommunication with the interior of said shaft, a lead-off hoseconnection extending from said housing to the surface of said drumcylinder adjacent one of said hose confining rims;

and a power drive connection to said reel, includ- 7 ing a gear on oneof said spiders for engagement Number by a driver pinion. 446,745 ALBERTJ. GRANBERG. 622,067 988,766 REFERENCES CITED 5 1,244,818 The followingreferences are of record in the 1339385 file of this patent: 3 10 72,340,217 UNITED STATES PATENTS Number Name V Date 10 8 Name DateSchenck Feb. 17, 1891 Patterson Mar. 28, 1899 Frigon Apr. 4; 1911 WittOct 30, 1917 Perrine May 11, 1920 Churchward Mar. 30, 1943 Grise Jan.25; 1944

